A question about HSRUN in S32K1XX

[BillWu123]

Hi NXP team:

        I have encounter a problem that CPU load on our S32K144 product up to 110%,so we are planning to enable the HSRUN mode to reduce its burden. Here I have a question ,if  it has been set to HSRUN mode which part of  function(exclude PFLASH and FLEXNVM) should be reconfigured? And what will be the impact of such changes? 

Best regards,

Bill Wu

[Senlent]

Hi@BillWu123

Sorry, we have been overloaded recently.

The following are some points that I think of when switching to HSRUN mode. I hope it will be helpful to you.

1.An MCU power mode enabling temporary high-speed access to the memory resources in the FTFC module. The user has no access to the Flash command set (no FCCOB or CSEc commands, nor emulated EEPROM functions, nor FlexRAM access - only system reads to NVM arrays) when the MCU is in HSRUN mode.

2.This chip cannot enter a stop mode directly from High Speed Run (HSRUN) mode.

To enter a stop mode from HSRUN, the chip must first transition to Normal Run mode.After that, it can enter a stop mode.

3.MAX CLOCK FREQUENCIES FOR HSRUN